Wrote itoc common function

This function converts an integer to its char array equivelant.

2 files changed, 62 insertions, 0 deletions

diff --git a/src/common.c b/src/common.c
index ad40025..7cbdc3e 100644
--- a/src/common.c
+++ b/src/common.c
@@ -32,3 +32,63 @@ void get_user_editor(char* editor) {
     strcpy(editor, "vi");
   }
 }
+
+
+/**
+ * Converts an integer to its equivelant char array
+ *
+ * @param i The integer to be converted
+ * @param out Char array pointer to the output variable. Must be large enough
+ *            to hold the output or unpredictable behavior may result.
+ *
+ * @return int The char count, not including the terminating null byte char
+ */
+int itoc(int num, char* out) {
+  int count = 0;
+
+  int tmp_num = num;
+  // Get a char count.  This is necessary becasue the numbers come out
+  // backwards. We need to start from the end and work back.
+  while(tmp_num > 0) {
+    //int n = tmp_num%10;
+    tmp_num /= 10;
+    count++;
+  }
+
+  int out_count = count;
+
+  // Set the last char as a null byte
+  out[count] = '\0';
+  count--;
+
+  while(count >= 0) {
+    int n = num%10;
+
+    if(n == 0) {
+      out[count] = '0';
+    } else if(n == 1) {
+      out[count] = '1';
+    } else if(n == 2) {
+      out[count] = '2';
+    } else if(n == 3) {
+      out[count] = '3';
+    } else if(n == 4) {
+      out[count] = '4';
+    } else if(n == 5) {
+      out[count] = '5';
+    } else if(n == 6) {
+      out[count] = '6';
+    } else if(n == 7) {
+      out[count] = '7';
+    } else if(n == 8) {
+      out[count] = '8';
+    } else if(n == 9) {
+      out[count] = '9';
+    }
+
+    num /= 10;
+    count--;
+  }
+
+  return out_count;
+}
diff --git a/src/common.h b/src/common.h
index b11fd8c..89b9026 100644
--- a/src/common.h
+++ b/src/common.h
@@ -23,4 +23,6 @@
 
 void get_user_editor(char*);
 
+int itoc(int, char*);
+
 #endif